/**
 * Created with IntelliJ IDEA.
 * Description:
 * User: syyyy
 * Date: 2025-08-22
 * Time: 11:35
 */
public class Test {
    public static void main(String[] args) {
        int[] preOrder={3,5,2,7,9,6,1};
        int[] inOrder={2,5,7,3,6,9,1};

    }
}
